| Attributes that record time-base information. | |
| Module | MEI.midi | 
| Members | scoreDef (via att.scoreDef.ges) staffDef (via att.staffDef.ges) | 
| Attributes | @ppq(optional)Indicates the number of pulses (sometimes referred to as ticks or divisions) per
                  quarter note. Unlike MIDI, MEI permits different values for a score and individual
                  staves.
               Value of datatype positiveInteger.
               att.timebase | 
| Declaration | 
                   |